USA HISTORY

AMERICAN IMPERIALISM(1890 1919)

THE UNITED STATES IN WORLD WAR I

[SOURCES]
Use the text to answer the following question ____ This new phenomenon would also lead to the construction of bombs, and it is conceivable-though much less certain-that extremely powerful bombs of a new type may thus be constructed ____ Yours truly, Albert Einstein-Letter to President Franklin D. Roosevelt from Albert Einstein, 1939How did the administration of President Roosevelt react to the information written in this letter?

(A) proposing the Lend-Lease Act

(B) ** creating the Manhattan project

(C) declaring war on the Axis powers

EXPLANATIONS BELOW

Concept note-1: -In August 1939, Einstein wrote to U.S. President Franklin Roosevelt to warn him that the Nazis were working on a new and powerful weapon: an atomic bomb. Fellow physicist Leo Szilard urged Einstein to send the letter and helped him draft it.

Concept note-2: -Einstein had written to inform Roosevelt that recent research on fission chain reactions utilizing uranium made it probable that large amounts of power could be produced by a chain reaction and that, by harnessing this power, the construction of “extremely powerful bombs” was conceivable.

Concept note-3: -Roosevelt decided that the letter required action, and authorized the creation of the Advisory Committee on Uranium.

Concept note-4: -The Einstein-Szilard letter to President Roosevelt changed the course of history by prompting American government involvement in nuclear research. The letter led to the establishment of the Manhattan Project. By the summer of 1945, the United States had built the world’s first atomic bomb.